tree baa94c4dd56225b4bee5da58607ae96cf3b420a9
parent e373721f64c4448273f9f86fe5a2df0f3b339ad8
author Luke Cheeseman <luke.cheeseman@arm.com> 1545047004 +0000
committer Copybara-Service <copybara-worker@google.com> 1598638197 -0700

[AArch64][libunwind] Unwinding support for return address signing with B Key

- Support for the case where the return address has been signed with the B key
- When the B key is used, a 'B' character is present in the augmentation string
  of CIE associated with the FDE for the function.

Differential Revision: https://reviews.llvm.org/D55704

llvm-svn: 349339
GitOrigin-RevId: 357973192d2eb45aa8c36b02cfef84d5d533d9d0